Patents by Inventor Doyle Clyde Lewis

Doyle Clyde Lewis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Strategically placed large grains in superalloy casting to improve weldability
    Patent number: 8809724
    Abstract: Process for reducing cracking in superalloy metal components by selectively growing large single grains during the casting operation at a region where fusion welding will be required.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: August 19, 2014
    Assignee: General Electric Company
    Inventors: Srikanth Chandrudu Kottilingam, Doyle Clyde Lewis, Daniel Anthony Nowak, Matthew D. Collier, Jian Zheng, Lawrence James Whims
  • STRATEGICALLY PLACED LARGE GRAINS IN SUPERALLOY CASTING TO IMPROVE WELDABILITY
    Publication number: 20100025382
    Abstract: Process for reducing cracking in superalloy metal components by selectively growing large single grains during the casting operation at a region where fusion welding will be required.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 4, 2010
    Inventors: Srikanth Chandrudu Kottilingam, Doyle Clyde Lewis, Daniel Anthony Nowak, Mathew D. Collier, Jian Zheng, Lawrence James Whims